Chrysler Town and Country 2003 Owner's Manual page 593

*FRONT BLOWER MOTOR INOPERATIVE - MTC —
TEST
3 Replace IPM Fuse #10.
Turn the ignition on.
Turn the Power switch on the A/C - Heater Control Module on.
Operate the front blower in all speeds and modes.
Does the blower motor operate properly without blowing the fuse?
Yes → Check the Fused Front Blower Motor Relay Output circuit and
→ Go To 4
No
4 Turn the ignition off.
Disconnect the Front Blower Motor Resistor Block C1 harness connector.
Measure the resistance between ground and the Fused Front Blower Motor Relay
Output circuit.
Is the resistance below 10K ohms?
Yes → Repair the Fused Front Blower Motor Relay Output circuit for a
→ Go To 5
No
5 Turn the ignition off.
Disconnect the Front Blower Motor Resistor Block C1 harness connector.
Disconnect the Front Blower Motor Resistor Block C2 harness connector.
Measure the resistance between Front Blower Motor Resistor Block pin C2-2 and
pins C2-1, C1-1, C1-2, C1-3, C1-5, and C1-6.
Is there continuity between pin C2-2 and any other pin?
Yes → Replace the Front Blower Motor Resistor Block in accordance
→ Go To 6
No
6 Turn the ignition off.
Disconnect the Front Blower Motor Resistor Block C1 harness connector.
Disconnect the Front Blower Motor Resistor Block C2 harness connector.
Measure the resistance between Front Blower Motor Resistor Block pin C1-4 and
pins C2-1, C1-1, C1-2, C1-3, C1-5, and C1-6.
Is there continuity between pin C1-4 and any other pin?
Yes → Replace the Front Blower Motor Resistor Block in accordance
→ Replace the Blower Motor in accordance with the Service Infor-
No
ACTION
the High Speed Blower Motor circuit for an intermittent short to
ground. Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
short to ground. Replace IPM Fuse #10.
Perform BODY VERIFICATION TEST - VER 1.
with the Service Information. Replace IPM Fuse #10.
Perform BODY VERIFICATION TEST - VER 1.
with the Service Information. Replace IPM Fuse #10.
Perform BODY VERIFICATION TEST - VER 1.
mation. Replace IPM Fuse #10.
Perform BODY VERIFICATION TEST - VER 1.
569
HEATING & A/C
Continued
APPLICABILITY
All
All
All
All